#include "EEPROM_Emulator.h"
#include "stdio.h"
#include "string.h"
 #include <unistd.h>
 
#define TOTAL 1024
#define PAGE_SIZE  512
uint8_t buf[TOTAL];

int32_t FlashInit( uint32_t PageBase, uint32_t PageCount )
{
	printf("%s call\r\n",__FUNCTION__);
	return 0;
}

int32_t FlashErasePage( uint32_t PageBase, uint32_t PageCount )
{
	if(PageBase == (uint32_t)&buf[0])
	{
		if(PageCount == 1)
			memset(&buf[0],0xff,PAGE_SIZE);
		else if(PageCount == 2)
		{
			memset(&buf[0],0xff,PAGE_SIZE);
			memset(&buf[PAGE_SIZE],0xff,PAGE_SIZE);
		}
	}
	else if(PageBase == (uint32_t)&buf[PAGE_SIZE])
	{
		memset(&buf[PAGE_SIZE],0xff,PAGE_SIZE);
	}
	printf("%s(%08X, %d)\r\n", __FUNCTION__, PageBase, PageCount);
	return 0;
}

int32_t FlashProgram( uint32_t Addr, uint32_t Data )
{
	*(uint32_t *)Addr = Data;
	printf("FlashProgram(%08X, %08X)\r\n", Addr, Data);
	return 0;
}

int32_t FlashRead( uint32_t Addr, uint32_t * Data )
{
	*Data = *(uint32_t *)Addr;
	//printf("%s(%08X, %08X)\r\n", __FUNCTION__, Addr, Data);
	return 0;
}
  
EEPROM_Driver EE_Driver={
	FlashInit, 
	FlashErasePage,
	FlashProgram,
	FlashRead
	};

static const uint8_t DefaultEeprom[ 128 ] = {
  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,  //
  0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,  //
  0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F,  //
  0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F,  //
  0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F,  //
  0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F,  //
  0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,  //
  0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F, };

static const EEPROM_Configuration Configuration = {
  (uint32_t)&buf[0], 2, PAGE_SIZE, 128 };

static uint8_t EEPROM_Cache[ 128 ];

int main( void )
{
  uint8_t Value;
  printf("eeprom emulator demo\n");
  
  //memset(buf,0xff,TOTAL);
  while(1)
  {
	if ( EEPROM_VIRGIN == EEPROM_Init( &Configuration, &EE_Driver, EEPROM_Cache ) )
		EEPROM_Format( (uint8_t *) DefaultEeprom, 128 );

	for ( uint32_t i = 0; i < 128; i++ )
	{
		EEPROM_ReadByte( i, &Value );
		printf("%02X ", Value);
		if(i%16==15)
			printf("\r\n");
	}

	for ( uint32_t i = 0; i < 10000; i++ )
	{
		//printf("base address:%08X\r\n", buf);
		EEPROM_WriteByte( i%128, (i+10) );
		EEPROM_ReadByte( i%128, &Value );
   
		printf("\r\n%d, read %d %d\n", i, i%128, Value);
		#if 0
		for ( uint32_t i = 0; i < TOTAL; i++ )
		{ 
			printf("%02X ", buf[i]);
			if(i%64==63)
				printf("\r\n");
		}
		#endif
	}
  	for ( uint32_t i = 0; i < TOTAL; i++ )
	{
	  
	  printf("%02X ", buf[i]);
	  if(i%PAGE_SIZE==PAGE_SIZE-1)
		printf("\r\n");
	  if(i%64==63)
		printf("\r\n");
	}
	getchar();
  }
  return 0;
}
